av_cold void ff_blockdsp_init_riscv(BlockDSPContext *c)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
void ff_clear_block_rvv(int16_t *block)
void ff_clear_blocks_rvv(int16_t *block)
static bool ff_rv_vlen_least(unsigned int bits)
Checks that the vector bit-size is at least the given value.
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
void ff_fill_block16_rvv(uint8_t *block, uint8_t value, ptrdiff_t line_size, int h)
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default value
void ff_fill_block8_rvv(uint8_t *block, uint8_t value, ptrdiff_t line_size, int h)
#define flags(name, subs,...)
The exact code depends on how similar the blocks are and how related they are to the block
#define AV_CPU_FLAG_RVV_I64
Vectors of 64-bit int's */.